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First name, Middle name, Last name, Scientific degree, Scientific rank, Current position. Full and brief name of the organization, The organization address.Medyanik Y.V. – candidate of technical sciences, senior lecturer E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Kazan State University of Architecture and Engineering The organization address: 420043, Russia, Kazan, Zelenaya st., 1
Title of the articleStudy of the properties of mixed cements filled with sludge waste from thermal power plants
Abstract.Sludge wastes are generated in large quantities as a result of softening of water in thermal power plants. They are stored at landfills and pollute the environment. Disposal of sludge in the production of construction materials is an important task. The article deals with the problems of sludge wastes after water softening power plants by means of its usage as a filler for mixed cements. The author researches the influence of sludge in an amount of 5-50 % on physical and technical characteristics of cements: the normal consistency, the setting time of cement grout and the strength of cement stone. Introduction sludge leads to an increase of normal density and slower setting time of cement grout. Application of sludge in an amount of more than 5 % lowers the strength of the cement stone. Superplasticizer was used to adjust the properties of mixed cements filled with sludge water softening. The optimal ratio of filler and superplasticizer which achieved the best setting time of cement paste and the activity of the binder mixed with the lowest consumption of Portland cement have been identified. Application of the results obtained in practice will solve environmental problems and expand the range of cements for mortars.
Keywords.mixed cements, filler, sludge water softening, superplasticizer.
For citations:Medyanik Y.V. Study of the properties of mixed cements filled with sludge waste from thermal power plants // Izvestiya KGASU. 2015. №2(32) P.249-255.

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